For the following exercises, prove the identity. cos(3x) cos 3 x = cos x sin
Question:
For the following exercises, prove the identity.
cos(3x) − cos3 x = − cos x sin2 x − sin x sin(2x)
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 100% (6 reviews)
cos 3x cos 3 x cos x s...View the full answer
Answered By
Hardik Dudhat
I am semi-qualified Chemical Engineering ,I have scored centum in accounting in my senior secondary and in my graduation. I have always helped my fellow students with their concerns on the subject, i have tutored on various tutoring sites in the past and also have taken home tuitions for degree and MBA students. As a tutor, I don't want my students to just get a solution, I want them to understand the concept and never have a doubt in that area thereon and i believe in excelling and not in educating.
0.00
0 Reviews
10+ Question Solved
Related Book For
Question Posted:
Students also viewed these Mathematics questions
-
Verify that the following are identities (see Example 6). (a) Sin2 v + 1/ sec2 v = 1 (b) Cos 3t = 4 cos3 t - 3 cos t (c) Sin 4x = 8 sin x cos3 x - 4 sin x cos x (d) (1 + cos ) (1 - cos ) = sin2
-
In Exercises 1-4, verify the identity by converting the left side into sines and cosines. 1. cot2 t / csc t = 1 - sin2 t / sin t 2. cos x + sin x tan x = sec x 3. secx cos x = sin x tan x 4. cot x -...
-
Using elementary geometry and the definition of sin x, cos x, we can show that for every x R i) | sin x| ii) sin(-x) = - sin x. cos(-x) = cos x, iii) sin2 x + cos2 x = 1, cos x = 1 - 2 sin2 (x/2),...
-
11) Wayland Manufacturing uses a normal cost system and had the following data available for 2010: Direct materials purchased on account Direct materials requisitioned 82,000 Direct labor cost...
-
Assess the merits of virtualization in an organization of your choice.
-
Briefly describe each of the following ideas or phenomena: (a) Dynamic equilibrium; (b) Direction of a net chemical change; (c) Le Chteliers principle; (d) Effect of a catalyst on equilibrium.
-
Do two designs for the DIE circuit for the Game of PIG and compare the gate-input costs of your two designs using information from Figure 6-14. Note that the register transfer description of DIE is:...
-
1. What are the important factors Joseph should consider prior to deciding if the airline contract would be a good one for the hotel? 2. Under what conditions might Joseph tell his revenue manager to...
-
This question is about race conditions and mutual exclusion. Which of the following statements are true? Select one or more: a. Mutual exclusion should be used even when only one process accesses a...
-
Madison Electric Pump Corporation manufactures electric pumps for commercial use. The company produces three models, designated as regular, advanced, and deluxe. The company uses a job-order cost...
-
For the following exercises, prove the identity. tan 3 x tan x sec 2 x = tan(x)
-
For the following exercises, find all exact solutions to the equation on [0, 2). Rewrite the expression sin 4 x with no powers greater than 1.
-
There are dozens of Web sites that provide calculators to help with personal finance decisions. Two good examples are www.quicken.com and www.financialpost.com. Log on to the Financial Post site, and...
-
Wilm Schmidt, the owner of Wilm's Window Washing Services, had difficulty getting the debits to equal credits on the January 31, 2020, trial balance. Wilm's Window Washing Services Trial Balance...
-
Octopus Limited, a Cape Town-based engineering firm, develops and sells a range of mining equipment and industrial processing systems. The company has two divisions mining and industrial processing....
-
A trumpeter plays a note at a sound level of 40 dB. She then blows harder, increasing the sound level to 60 dB. By how much does the sound intensity increase? a. It increases by a factor of 100. b....
-
When I run the following program, describe what will happen in detail. #include #include using namespace std; int nums[] = (0,1,2,3,4,5,6,7,8,9); int compute_sum(int num) { int buf[5]; int i, sum;...
-
A 534-turn, 75-cm solenoid carries a current of 21 amps. What is the magnitude of the force (in N), on a 47-C charge traveling at a speed of 826 m/s on the axis of the solenoid at an angle of 18.1...
-
A partnership does not offer limited liability to its owners. The partners are personally liable for all of the partnerships obligations should it default. This is clearly the greatest disadvantage...
-
Vince, Inc. has developed and patented a new laser disc reading device that will be marketed internationally. Which of the following factors should Vince consider in pricing the device? I. Quality of...
-
Problems 5762 require the following discussion. Inflation is a term used to describe the erosion of the purchasing power of money. For example, if the annual inflation rate is 3%, then $1000 worth of...
-
In Problems 5770, write each expression as a single logarithm. 21 log, x + log3 (9x) - log39
-
In Problems 4576, solve each exponential equation. Express irrational solutions in exact form. 9x3x+1 + 1 = 0
-
Select an appropriate contract type with an accompanying procurement method (Discuss why the specific contract type & procurement method was selected)
-
How to make a payment process where the user chooses with checkbox the item he wants, he clicks the "next" button, and in the next page it shows up the order summary. after that, he proceeds to the...
-
Identify two contractual risks and discuss these risks (consider if risk transfer or a risk enforcement mechanism could be used in Project A which involves obtaining an on-site storage facility in...
Study smarter with the SolutionInn App